Home / 7,828,000.80-11,742,001.20-2,509,754.40

Finding the Fourth Proportional to 7,828,000.80, 11,742,001.20 and 2,509,754.40

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Solution

The fourth proportional to 7,828,000.80, 11,742,001.20 and 2,509,754.40 is: 3,764,631.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828,000.80 : 11,742,001.20 = 2,509,754.40 : x
  2. Step 2: Convert to fraction form
    7,828,000.80/11,742,001.20 = 2,509,754.40/x
  3. Step 3: Cross multiply
    7,828,000.80x = 11,742,001.20 × 2,509,754.40
  4. Step 4: Simplify right side
    7,828,000.80x = 29,469,539,176,505.28
  5. Step 5: Solve for x
    x = 29,469,539,176,505.28/7,828,000.80
  6. Step 6: Final answer
    x = 3,764,631.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.